Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-06-28
2005-06-28
Mulcahy, Peter D. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
active
06911492
ABSTRACT:
The present invention provides a thermoformable polymer blend that resists surface discoloration when exposed to acidic environments, such as exist within a clothes treating apparatus having an interior region into which is introduced a conditioning composition comprising from about 0.001% to about 10% of a diethylene glycol, from about 0.01% to about 10% of a beta cyclodextrin, from about 0.001% to about 5% of a surfactant, from about 0% to about 2% of a preservative, and the balance water. The discoloration resistant thermoformable polymer blend according to the invention includes:(A) a polymer package including a blend of:(Ai) one or more homopolymers and/or copolymers of polypropylene;(Aii) one or more polymers of vinyl aromatic monomers;(Aiii) one or more block polymers; and(Aiv) one or more styrene-maleic anhydride copolymers;(B) a surface treated mineral filler;(C) an antioxidant package;(D) a zinc-based lubricant; and(E) optionally, a titanium dioxide based colorant system.
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Chundury Deenadayalu
Edge L. Steven
Hofmann Curtis A.
Keener Brian D.
McElyea Thomas L.
Ferro Corporation
Mulcahy Peter D.
Rankin, Hill Porter & Clark LLP
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